Valve lifter



S. PALMER VALVE LIFTER Aug..15, 1933.

Filed March 29, 1930 In lien tor Zmzsr .S'Zarzon Pa Fz'tyj.

Y 55 Ainthe drawing;

jatentecl u g."15,

1,922,392 f VALVEV LIF'rE vStantonPalmer, Chicago, Ill., assigner, laymesne assignments,` o Snap'onToo1s,gInc Kenosha, Y

Wlfs., aV Corporation of. Delaware Applicationmareh 29,1930, serial No.' 439,866 4 claims.' (oms-ses) This invention relates to valvelifters and more particularly to. collapsible valve lifters, although certain features therofm'ay be employedrwith equal advantage for other purposes. f 5.

ciation and dismantlingto provide a valve lifter of variable frame vstructure for selective lcollapse during the non-,use thereof. f

occupy a minimum areafduring the lnon-use or transportation thereof. .This is .anv important l factor bothv iHn/the'requirement Vofllessu experi` sive Acontainers and minimizingv transportationv cost `totheextent thatthe'v'endor may convenf.

ienly ymaintain a supply thereof Ona shelf withlout occupying' an appreciable space! AMoreover,`

the' mechanic iinds it ynecessary to keep such equip'fl ment "under lock and key, andthe ordinary valve,

lifter .assembly does t not afford suchfprotection owing to the bulk thereof.4 As av consequence, 'a collapsible valvelifter lwhich does `not require complete dismantling, is animportant* asset to manufacturer, vendor and the user` in thatsuch affords s imple and Yinexpensive rmanipulation from the lstandpoint of production,Y sales,A and `puse. y Y 'One' object of the present invention is to sirnplify the Y construction and improve. the operation of devices of the character mentioned.

Anotherobject is toprovide valvelifter kstrucl, ture which isA collapsible without requiring .com-L plete dismantling of` the component` elements thereof.

l `Still another object is the provisionofs'a: valve lifter frame ,having a Vyoke and V jawsfpivotally associated therewith for selective collapse with 40cm dismanumg.' g i Afurther object is to provide a -frame having a pivotall'y associated yoke andV jaws :a'pableY of adjustment to a rigid confronting position;

having jaws', and a yokeassociated therewith Yfor collapse withv aremovab1eactuator there-- StillaVV urther object is to provide novel lmeans With a frame to enable the `reaclyassembly thereof in rigid operative relations;

Other objects and advantages will appear from the following' descriptionv of an illustrative em' bodiment of the'pres'ent invention. y

It contemplates .more 'especially the 'provision of complemental elements capable of ready asfso- Valve lifters arefusuallybulky :andllaclr vthe* necessary compactness to enable their vplacement y in -tool'ikits or other storage space sog-asto A still rfurther object is to provide a vframe for collapsibly associating yoke and'jaw members thereof being in section tofclarify the showing. Figure 2 is a View lof. vthe device shown in Fig-'- ure 1in itslcollap'sed positionlto 'illustrate the compactness thereof for shipment.'v storage and Figure 1 is asideviewitie1watiaeofafdeviceV embodyingfeaturesof the-present invention, parts protected placement-,by the user duri-ng thenon- -use thereof. .t v FigureB is a` plan view of one form of kjaws capable of use with a frameof the type `herein ldisfclosed. f

` Fig-ure US a perspective view of the jaws yShown in Fgure. Y

' Figure 5 isa perspective view of a modified jaw constituting an 'extension ofthe frame Work 'dise closed in Figure 1.

f Figuref isa view of a ofA use in conjunction 'with actuator means. f 1

vFigure 'Tis a perspective View of -a wing nut em-4 ndned frame capable `valve lifter jaws and ployed'in connection with a vdeviceforassembly of the'V component elements .thereoflf v l metallic bar. or other sheetmaterial to define Icon? frontingarms 11 and 12 which, in this instance,

presenta UASh'aped contour thereto. As shown,

ythe framev 10 is manipulated sothat the armsll and'12 thereof aredisposed h 'ori'zontallyA` to re-V c'eive 'a`yoke`13 and .valve lifter jaws v14, respectively, of anyY desired construction vas commercial lpractice'may dictate.`

etY

he structure selected'for illustration comprises f a frame l0 stampedorotherwis'e shaped f r o' m av Theyoke v13 'comprisesginjthis instance, a'tulbular housing 15-Whichis '-bifurcated'to present confronting resiliently relatedarms v16 spacedv to receive the frame arm 1l therebetween for pivf otal connection-therewith., Thepivotalconn'ection is afforded, in thisinstancev by threaded fastener 17 which extends through aligned aperf turesthereinfor receptionof athreaded. nut 13 v thereonjtolmaintain the elements in assembled relation.` So 'that the yoke 13 may be maintained inralignm'ent with the arm llgiin its operative position, another threadedy fastener'lg extends' through the confronting arms l''thereof for reception in'a notch 20 proXima te to the extremity? lof the arm 11 for communicationtwith the lower edge 2 1 thereof.,v In 1coI isequencethereof,r the yoke 13 maybe `pivoted in a counterfclockwise direction 'A (viewed from Figure 2) so that'the fastener 19 will engage the notch 20 whereupon Y 'a Wingnut 22 in threaded engagement therewith may be tightened to effect the frictional engag'el ment of the yoke arms 16 with the lframe arm 11,Y 1 10 extensions 35 with the jaws 29 thereof invpivotal Yhousing 15.

therebyholding .the tubular housing 15 with its bore 23 with its axis vertical.

In order to support the spring surrounding the Ystem of the valve, the jaws 24 are detachably associated with the arm 12 of the frame 10 for axial alignment with the bore 23 of the yoke To this end, the jaws 24 comprise confronting complemental elements having arms 25 and 26 which terminate in extensions 27 and 28 preferably though not essentially provided with circularly arcuate jaws 29 for termination in outwardly curved prongs 30. The prongs 30 are spaced for resilient spreading to conform with the exterior contour of the spring which is received between the arcuate portions 29 for support upon transversely extending'flangesl, in this instance stamped therefrom for confronting approach in the same piane, the ilanges 31 serving to sustain the valve spring for compression by the valve displaced in a descending direction by an actuator to be hereinafter described.

As shown, thejaws 24 have the arms 25 and 26 thereof provided with spaced aligned vapertures 32 and 33 which are adapted to receive threaded studs 34 therethrough for connection to similarly a'pertured confronting extensions 35,

these being retained or fixedly mounted thereto by means of wing nuts 36 which enable the ready detachment thereof. Extensions 35 and 36 constitute elongated bars which are provided with the necessary convergents for reception between the jaw arms 25 and 25, they being of thenecessary length sc that the arcuate jaws 29 will be in axial alignment with the bore 23 of the housing 15. To this end, the extensions 35 are provided with apertures spaced for alignment with corresponding apertures provided in the arm 12 0f the frame 1G for the reception of a threaded stud 36 therethrough which has a nut 37 in threaded engagement therewith to retain the association'with the frame 10.

Another threaded stud 38 projects through the aligned apertures Yin the extensions 35 for the receptionl ofv a wingV nut 39 thereon, which extends transversely therebetween for engagement of a notch 4G provided in the arm 12 proximate to the extremity thereof in communication with its upper edge 41, thereby limiting the clockwise pivotal movement of the jaws29 for alignment with the arm` 12. In this position Vthe wing nut 39 is tightened so as to preclude any displace-v ment between the jaws 29 and the arm 12, thereby establishing` a rigid Vassembly for cooperation with an actuator to be presently described.

The actuator comprises, in this instance, a cylindrical housing 42 which is shaped for telescopicV association with the bore 23 of the yoke housing 15 which is in frictional engagement therewith owing to a threaded stud 43 which projects through an aperture 44 on the arms 16 thereof in the region of the housing 15 forthreaded engagement with the other arm 16 to eifect the approach or spreading thereof depending upon in the limits of its length. This affords the ad-` justment `of the cylindrical housing 42 with respect to the jaws 29'so that a plunger 45 may be actuated to compress the Valve spring within th Y limits of its movement. Y

The plunger 45 is axially slidable within the housing 42, it being guided by'a bushing 46' which has a threaded periphery 47 for adjustable engagement with the corresponding interiorly threaded mouth of the plunger housing 42. As shown, the bushing 46 terminates in upwardly extending furcations 48 adapted to receive a pivot pin 49 therebetween to sustain a cam 50 eccentrically mounted thereon. The cam 50 terminates in a lever 5l which affords the necessary manual rotation thereof to downwardly displace the plunger 45' having the extremity thereof in frictional peripheral engagement with the cam V5i).V A coil spring 52 envelops the plunger 45 within the housing 42 for engagement with a co1- lar 53 xed thereto-by means of a pin 54, the other extremity of the coil spring 52 bearing against a shoulder 55 provided by the housing42 to normally urge the plunger 45 in an upward direction so that its extremity will be in engagement with the periphery of the cam 50ina1l positions thereof.

. A lug 56 projects from the cam 50 at its juncv ture with the lever 51 to` limit the clockwise rotation thereof (viewed fromFigure 1) in eifecting the descent of the plunger 45 Vvwhich engages the head'of the valve to effect the descent thereof to Y compress the springwhich is supported on 'theVV flanges 31 of the jaws 29, thereby enabling the removal of the pin and its associated parts. for valve grinding Yor replacements as conditions may require. With thisV arrangement, the plunger 45 may be roughly adjusted to confrontthe'valve spring jaws.29 for any particular engine con.- struction by manipulating the pin 46whic'h enables the turning adjustment ofthe stud 43` extending between the .bifurcated tubular'h'ousing 15 to increase or decrease the extent of the bore 23v so that the plunger housing 42 will be adjustable therein or h eld against` displacement, re-

spectively. Thereupon, the lever 51 is'manipulated for pivotal movement about 'itsfulcrum 41 to depress the plunger 45 to accomplishthe' intended purpose.y g,

Diiferent engine constructions require special frames toV provide the necessary accessibility to the valves. This knock-down construction?, en-

ables the frame 10 to be substituted with similar bars of diiferent configuration to meet any particular commercial requirement. In the present embodiment, a frame 10 comprising an inclined bar with respect to its arms 11 and 12,`i's"capable of association with the yoke 15 and jaws 29 in thev the ready substitution of direrent shaped frames 10 foruse in connection with constructions. i

Various changes may be madein the embodiment ofthe invention herein specifically: described without departing from or sacricing any of the advantages of the invention as defined in the` appended claims. v' A I claim: 1. In a collapsible valve lifter., the combination with a frame, of a yoke pivotally associated with said frame, valve spring receiving jaws pivotally associated with said frame for confronting as'- diiferent engine sembly with said yoke, actuator means associated ablefastenerscomprising screw. means on said'.

with said. yoke, fastener means on said yoke to enable the axial adjustment of said actuator` said frame, valve spring receivingA jaws detachably'associated with saidl frame for confronting' assemblywith said yoke, actuator "means associated with said yokegfastener means vonpsaid yoke to enable the axial adjustment Vof said actuator means therein, frame connecting means for r said yoke and jaws to enable the pivotalA collapse thereof relative to said frameand adjustable fastener means for maintaining said yoke and .Y jaws in operative position against collapse;v

3. In acollapsible valve lifter, the combination' with a frame, of a yoke pivotally' associated with said frame, valve spring receiving jaws devtachably associated with said frame'for confronting assembly withV said yoke, actuator vmeans as- Y sociated withv said yoke, and adjustable fasteners for said yoke Vand-jaws to enable the pivotal collapse thereof relative to said frame, said adjustframe serving'asa pivot for said yoke and jaws,

' thefref being notches in. said frame, and other screw means on said yoke and jaws spaced from said pivotal screw for cooperation with said notch Y to Vhold said yoke and* jaws'in confronting assembledrelationl v4'. In a collapsible valve lifter, the combination with a frame, ofa yoke pivotally associated with said frame, vvalve spring receiving jaws Vdetach-'- ably associated with said frame for confronting assembly with said yoke, actuator means associatedwith said yoke, and adjustable fasteners' for` saidv yoke andjaws 'to enable the pivotal collapse thereof relative to lsaid frame., said adjust- Vable fasteners comprising screw means on'said frame serving as afpivot 'for said yoke andjaws,v

there beingjnotches said frame, other screw meansion said .yoketand jaws .spaced from said pivotal screw forr 'cooperationwith said notch to hold saidA yoke-and jaws in confronting. assemtion. Y f

'Y STANTON PALMER.

--bled relation, andrfastener' means on said yoke to .t -maintain said actuator means adjusted posi- 

